opg

KO | EN

gitlite — search

#typescript #ai-agents #ai #dsh-plugin #deepseek-harness #open-source #cli #claude-code #codex #developer-tools #react #windows

★ 36 Open GitHub ↗

Rust OpenAPI 3.0 docs generator

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

<h3 align="center">opg</h3>
 Rust OpenAPI 3.0 docs generator
 
 <a href="/LICENSE">
 <img alt="GitHub" src="https://img.shields.io/github/license/Rexagon/opg" />
 </a>
 <a href="https://github.com/Rexagon/opg/actions?query=workflow%3Amaster">
 <img alt="GitHub Workflow Status" src="https://img.shields.io/github/workflow/status/Rexagon/opg/master" />
 </a>
 <a href="https://crates.io/crates/opg">
 <img alt="Crates.io Version" src="https://img.shields.io/crates/v/opg" />
 </a>
 <a href="https://docs.rs/opg">
 <img alt="Docs.rs" src="https://docs.rs/opg/badge.svg" />
 </a>

#### Example:
> Or see more [here](https://github.com/Rexagon/opg/tree/master/test_suite/tests)

```rust
use opg::*;
use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(rename_all = "camelCase")]
#[opg("Simple enum")]
enum SimpleEnum {
    Test,
    Another,
    Yay,
}

#[derive(Serialize, Deserialize, OpgModel)]
#[opg("newtype string", format = "id", example = "abcd0001")]
struct NewType(String);

#[derive(Serialize, Deserialize, OpgModel)]
struct SimpleStruct {
    first_field: i32,
    #[opg("Field description")]
    second: String,
}

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(rename_all = "kebab-case")]
enum ExternallyTaggedEnum {
    Test(String),
    AnotherTest(String, #[opg("Second")] String),
}

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(untagged)]
enum UntaggedEnum {
    First {
        value: NewType,
    },
    #[opg("Variant description")]
    Second {
        #[opg("Inlined struct", inline)]
        another: SimpleStruct,
    },
}

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(tag = "tag", rename_all = "lowercase")]
enum InternallyTaggedEnum {
    First(SimpleStruct),
    Second { field: String },
}

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(tag = "tag", content = "content", rename_all = "lowercase")]
enum AdjacentlyTaggedEnum {
    First(String),
    Second(NewType, NewType),
}

#[derive(Serialize, Deserialize, OpgModel)]
#[serde(rename_all = "camelCase")]
struct TypeChangedStruct {
    #[serde(with = "chrono::naive::serde::ts_milliseconds")]
    #[opg("UTC timestamp in milliseconds", integer, format = "int64")]
    pub timestamp: chrono::NaiveDateTime,
}

#[derive(Serialize, Deserialize, OpgModel)]
struct StructWithComplexObjects {
 #[serde(skip_serializing_if = "Option::is_none")]
 #[opg(optional)]
 super_optional: Option<Option<String>>,
 field: Option<String>,
 boxed: Box<Option<i32>>,
}

#[derive(Serialize, OpgModel)]
struct GenericStructWithRef<'a, T> {
 message: &'a str,
 test: T,
}

#[derive(Serialize, OpgModel)]
struct SuperResponse {
    simple_enum: SimpleEnum,
    #[serde(rename = "new_type")]
    newtype: NewType,
    externally_tagged_enum: ExternallyTaggedEnum,
    untagged_enum: UntaggedEnum,
    internally_tagged_enum: InternallyTaggedEnum,
    adjacently_tagged_enum: AdjacentlyTaggedEnum,
    type_changed_struct: TypeChangedStruct,
    struct_with_complex_objects: StructWithComplexObjects,
}

#[test]
fn print_api() {
 let test = describe_api! {
 info: {
 title: "My super API",
 version: "0.0.0",
 },
 tags: {internal, admin("Super admin methods")},
 servers: {
 "https://my.super.server.com/v1",
 },
 security_schemes: {
 (http "bearerAuth"): {
 scheme: Bearer,
 bearer_format: "JWT",
 },
 },
 paths: {
 ("hello" / "world" / { paramTest: String }): {
 summary: "Some test group of requests",
 description: "Another test description",
 parameters: {
 (header "x-request-id"): {
 description: "Test",
 required: true,
 },
 },
 GET: {
 tags: {internal},
 summary: "Small summary",
 description: "Small description",
 deprecated: true,
 parameters: {
 (query someParam: u32): {
 description: "Test",
 }
 },
 200: String,
 418 ("Optional response description"): String
 },
 POST: {
 tags: {admin},
 security: {"bearerAuth"},
 body: {
 description: "Some interesting description",
 schema: GenericStructWithRef<'static, i64>,
 required: true,
 },
 200: SuperResponse,
 callbacks: {
 callbackUrl: {
 ("callbackUrl"): {
 POST: {
 200: std::vec::Vec<String>,
 }
 }
 }
 }
 }
 }
 }
 };

println!("{}", serde_yaml::to_string(&test).unwrap());
}
```

<details><summary>Result:</summary>

```yaml
---
openapi: 3.0.3
info:
 title: My super API
 version: 0.0.0
tags:
 - name: admin
 description: Super admin methods
 - name: internal
servers:
 - url: "https://my.super.server.com/v1"
paths:
 "/hello/world/{paramTest}":
 summary: Some test group of requests
 description: Another test description
 get:
 tags:
 - internal
 summary: Small summary
 description: Small description
 deprecated: true
 responses:
 200:
 description: OK
 content:
 application/json:
 schema:
 type: string
 418:
 description: Optional response description
 content:
 application/json:
 schema:
 type: string
 parameters:
 - name: someParam
 description: Test
 in: query
 schema:
 type: integer
 format: uint32
 post:
 tags:
 - admin
 security:
 - bearerAuth: []
 requestBody:
 required: true
 description: Some interesting description
 content:
 application/json:
 schema:
 $ref: "#/components/schemas/GenericStructWithRef"
 responses:
 200:
 description: OK
 content:
 application/json:
 schema:
 $ref: "#/components/schemas/SuperResponse"
 callbacks:
 callbackUrl:
 /callbackUrl:
 post:
 responses:
 200:
 description: OK
 content:
 application/json:
 schema:
 type: array
 items:
 type: string
 parameters:
 - name: paramTest
 in: path
 required: true
 schema:
 type: string
 - name: x-request-id
 description: Test
 in: header
 required: true
 schema:
 type: string
components:
 schemas:
 AdjacentlyTaggedEnum:
 type: object
 properties:
 content:
 oneOf:
 - type: string
 - type: array
 items:
 oneOf:
 - $ref: "#/components/schemas/NewType"
 - $ref: "#/components/schemas/NewType"
 tag:
 description: AdjacentlyTaggedEnum type variant
 type: string
 enum:
 - first
 - second
 example: first
 required:
 - tag
 - content
 ExternallyTaggedEnum:
 type: object
 additionalProperties:
 oneOf:
 - type: string
 - type: array
 items:
 oneOf:
 - type: string
 - description: Second
 type: string
 GenericStructWithRef:
 type: object
 properties:
 message:
 type: string
 test:
 type: integer
 format: int64
 required:
 - message
 - test
 InternallyTaggedEnum:
 oneOf:
 - type: object
 properties:
 first_field:
 type: integer
 format: int32
 second:
 description: Field description
 type: string
 tag:
 description: InternallyTaggedEnum type variant
 type: string
 enum:
 - first
 example: first
 required:
 - first_field
 - second
 - tag
 - type: object
 properties:
 field:
 type: string
 tag:
 description: InternallyTaggedEnum type variant
 type: string
 enum:
 - second
 example: second
 required:
 - field
 - tag
 NewType:
 description: newtype string
 type: string
 format: id
 example: abcd0001
 SimpleEnum:
 description: Simple enum
 type: string
 enum:
 - test
 - another
 - yay
 example: test
 StructWithComplexObjects:
 type: object
 properties:
 boxed:
 nullable: true
 type: integer
 format: int32
 field:
 nullable: true
 type: string
 super_optional:
 nullable: true
 type: string
 required:
 - field
 - boxed
 SuperResponse:
 type: object
 properties:
 adjacently_tagged_enum:
 $ref: "#/components/schemas/AdjacentlyTaggedEnum"
 externally_tagged_enum:
 $ref: "#/components/schemas/ExternallyTaggedEnum"
 internally_tagged_enum:
 $ref: "#/components/schemas/InternallyTaggedEnum"
 new_type:
 $ref: "#/components/schemas/NewType"
 simple_enum:
 $ref: "#/components/schemas/SimpleEnum"
 struct_with_complex_objects:
 $ref: "#/components/schemas/StructWithComplexObjects"
 type_changed_struct:
 $ref: "#/components/schemas/TypeChangedStruct"
 untagged_enum:
 $ref: "#/components/schemas/UntaggedEnum"
 required:
 - simple_enum
 - new_type
 - externally_tagged_enum
 - untagged_enum
 - internally_tagged_enum
 - adjacently_tagged_enum
 - type_changed_struct
 - struct_with_complex_objects
 TypeChangedStruct:
 type: object
 properties:
 timestamp:
 description: UTC timestamp in milliseconds
 type: integer
 format: int64
 required:
 - timestamp
 UntaggedEnum:
 oneOf:
 - type: object
 properties:
 value:
 $ref: "#/components/schemas/NewType"
 required:
 - value
 - description: Variant description
 type: object
 properties:
 another:
 description: Inlined struct
 type: object
 properties:
 first_field:
 type: integer
 format: int32
 second:
 description: Field description
 type: string
 required:
 - first_field
 - second
 required:
 - another
 securitySchemes:
 bearerAuth:
 type: http
 scheme: bearer
 bearerFormat: JWT
```

</details>

opg

Explore Similar Repositories

Was this content helpful?

Recent Feedback

Download README